1343342881 has 4 divisors (see below), whose sum is σ = 1353920512. Its totient is φ = 1332765252.

The previous prime is 1343342879. The next prime is 1343342893. The reversal of 1343342881 is 1882433431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1343342881 - 2¹ = 1343342879 is a prime.

It is a super-2 number, since 2×1343342881² = 3609140191866760322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1343342881.

It is not an unprimeable number, because it can be changed into a prime (1343342681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5288625 + ... + 5288878.

It is an arithmetic number, because the mean of its divisors is an integer number (338480128).

Almost surely, 2^1343342881 is an apocalyptic number.

It is an amenable number.

1343342881 is a deficient number, since it is larger than the sum of its proper divisors (10577631).

1343342881 is a wasteful number, since it uses less digits than its factorization.

1343342881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10577630.

The product of its digits is 55296, while the sum is 37.

The square root of 1343342881 is about 36651.6422687988. The cubic root of 1343342881 is about 1103.3897859253.

The spelling of 1343342881 in words is "one billion, three hundred forty-three million, three hundred forty-two thousand, eight hundred eighty-one".